/*
 * Copyright 2011 Andy Lee.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package uk.co.optimisticpanda.remoteweb.command.xml

import groovy.util.slurpersupport.GPathResult
import uk.co.optimisticpanda.remoteweb.command.Command
import uk.co.optimisticpanda.remoteweb.command.CommandSet
import uk.co.optimisticpanda.remoteweb.command.Executable
import uk.co.optimisticpanda.remoteweb.command.Variable
import uk.co.optimisticpanda.remoteweb.command.web.WebActionType
import uk.co.optimisticpanda.remoteweb.command.web.WebExecutable

CommandSet unmarshal(input){
	result = new XmlSlurper().parseText(input)
	CommandSet set = new CommandSet()
	set.commands = getCommands(result.commands)
	set.variables = getVariables(result.variables.variable)
	result.variables.variable
	return set
}

private Command process( GPathResult result){
	new Command(description: nullBlank(result.@description), executable: getExecutable(result), children : getCommands(result));
}

private def getVariables(GPathResult result){
	result.collect { new Variable(name : it.@name, value: it.@value) }
}

private def getCommands( GPathResult result){
	result."*".collect{ process( it) }
}

private Executable getExecutable(result){
	if(result.name() == "container"){
		return null;
	}
	new WebExecutable(WebActionType.getWebExecutableArgs(result))
}

private nullBlank(result){
	if(! (String.valueOf(result))){
		return null;
	}
	result
}

